Xiao , J., H. . Zhou, and Y. . . Guo. “Correlation Between Pulmonary Vascular Permeability Index, Shock Index, and Severity of Septic Shock and Their Evaluation Values for Prognosis”. Iranian Red Crescent Medical Journal, vol. 22, no. 3, Mar. 2020, https://ircmj.com/index.php/IRCMJ/article/view/602.